[grits] Use rounded corners for GritsPoly

[Andy Spencer <andys src gnome org>]

commit f54436e90fe38ef17e85dbdfea64a8916ceae872
Author: Andy Spencer <andy753421 gmail com>
Date:   Thu Oct 27 07:28:47 2011 +0000

    Use rounded corners for GritsPoly

 src/objects/grits-poly.c |   42 +++++++++++++++++++++++++++++++++++++++---
 src/plugins/test.c       |    2 +-
 2 files changed, 40 insertions(+), 4 deletions(-)
---
diff --git a/src/objects/grits-poly.c b/src/objects/grits-poly.c
index 720e3b1..e33ca2d 100644
--- a/src/objects/grits-poly.c
+++ b/src/objects/grits-poly.c
@@ -88,18 +88,54 @@ static void grits_poly_draw(GritsObject *_poly, GritsOpenGL *opengl)
 	glDisable(GL_ALPHA_TEST);
 	glDisable(GL_CULL_FACE);
 	glDisable(GL_LIGHTING);
+
 	glEnable(GL_POLYGON_OFFSET_FILL);
-	glPolygonOffset(1, 1);
+	glEnable(GL_POLYGON_OFFSET_LINE);
+	glEnable(GL_POLYGON_OFFSET_POINT);
+
 	if (poly->color[3]) {
+		/* Draw background farthest back */
+		glPolygonOffset(3, 3);
 		glColor4dv(poly->color);
+		glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 		grits_poly_runlist(poly, 0, grits_poly_tess);
 	}
-	glLineWidth(poly->width);
-	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+
+	glEnable(GL_POLYGON_SMOOTH);
+	glEnable(GL_LINE_SMOOTH);
+	glEnable(GL_POINT_SMOOTH);
+
+	if (!poly->color[3] && poly->border[3] && poly->width > 1) {
+		/* Draw line border in the middle */
+		glColor4d(0,0,0,1);
+
+		glPointSize(poly->width*2);
+		glLineWidth(poly->width*2);
+
+		glPolygonOffset(2, 2);
+
+		glPolygonMode(GL_FRONT_AND_BACK, GL_POINT);
+		grits_poly_runlist(poly, 1, grits_poly_outline);
+		glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+		grits_poly_runlist(poly, 1, grits_poly_outline);
+	}
+
 	if (poly->border[3]) {
+		/* Draw border front-most */
 		glColor4dv(poly->border);
+
+		glPointSize(poly->width);
+		glLineWidth(poly->width);
+
+		glPolygonOffset(1, 1);
+		if (poly->width > 1) {
+			glPolygonMode(GL_FRONT_AND_BACK, GL_POINT);
+			grits_poly_runlist(poly, 1, grits_poly_outline);
+		}
+		glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
 		grits_poly_runlist(poly, 1, grits_poly_outline);
 	}
+
 	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 	glPopAttrib();
 }
diff --git a/src/plugins/test.c b/src/plugins/test.c
index 44e39d0..b7435ab 100644
--- a/src/plugins/test.c
+++ b/src/plugins/test.c
@@ -125,7 +125,7 @@ void _load_poly(GritsPluginTest *test)
 	test->poly->color[2]  = test->poly->border[2] = 0;
 	test->poly->color[3]  = 0.2;
 	test->poly->border[3] = 1;
-	test->poly->width     = 10;
+	test->poly->width     = 6;
 	grits_viewer_add(test->viewer, GRITS_OBJECT(test->poly),  GRITS_LEVEL_OVERLAY, TRUE);
 	g_signal_connect(test->poly, "enter",        G_CALLBACK(on_poly_enter),  NULL);
 	g_signal_connect(test->poly, "leave",        G_CALLBACK(on_poly_leave),  NULL);